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{{PatentInfo |Inventor=Robert W. Randolph |Assignee=The Parker Pen Company |Country=US |ApplicationNum=616852 |ApplicationDate=1945-09-17 |PatentNum=2427068 |PatentDate=1947-09-09 |PriorityDate=1945-09-17 |Titolo=Ball-point writing instrument |Marca=Pa...
{{PatentInfo
|Inventor=Robert W. Randolph
|Assignee=The Parker Pen Company
|Country=US
|ApplicationNum=616852
|ApplicationDate=1945-09-17
|PatentNum=2427068
|PatentDate=1947-09-09
|PriorityDate=1945-09-17
|Titolo=Ball-point writing instrument
|Marca=Parker
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera. Riferimenti a {{MentionPatent|US|1527971}}, {{MentionPatent|US|1805347}}, {{MentionPatent|US|1206683}}, {{MentionPatent|US|1310257}}, {{MentionPatent|US|1725064}}, {{MentionPatent|US|1590394}}, {{MentionPatent|US|1774819}}, {{MentionPatent|US|0777408}}, {{MentionPatent|US|0824733}} e {{MentionPatent|US|1156287}}.
|Inventor=Robert W. Randolph
|Assignee=The Parker Pen Company
|Country=US
|ApplicationNum=616852
|ApplicationDate=1945-09-17
|PatentNum=2427068
|PatentDate=1947-09-09
|PriorityDate=1945-09-17
|Titolo=Ball-point writing instrument
|Marca=Parker
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera. Riferimenti a {{MentionPatent|US|1527971}}, {{MentionPatent|US|1805347}}, {{MentionPatent|US|1206683}}, {{MentionPatent|US|1310257}}, {{MentionPatent|US|1725064}}, {{MentionPatent|US|1590394}}, {{MentionPatent|US|1774819}}, {{MentionPatent|US|0777408}}, {{MentionPatent|US|0824733}} e {{MentionPatent|US|1156287}}.